STM32 MCUs Security

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About CRC

Posted on October 30, 2015 at 20:08Hi. I want to make SSI protocol with SPI peripheral on STM32F3 series. Also want to use DMA for Tx. There is a hardware CRC calculation unit, which calculate CRC above all data and is attached as last byte (in my c...

matic by Associate III
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Disabling Flash readout protection through sram

Posted on October 06, 2015 at 12:24Hi all, Anyone knows why the following code is not disabling the flash memory readout protection? It is being executed on a STM32F103 microcontroller.FLASH_Unlock();  FLASH_ReadOutProtection(DISABLE);  FLASH_UserOp...

carles by Associate
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sha-1 problem with stm32 crypto lib

Posted on June 14, 2015 at 15:15Hi,I'm developing on the stm32f207 with the M3_CryptoFW_RngHW_2_0_6.libI would like to use the sha-1 from lib but from some reason I do not get the correct result.Here is my test...My input buffer is 8 bytes: 1,2,3,4,...

ari_v2 by Senior
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STM32 crypto library

Posted on May 19, 2015 at 12:47I am trying out some examples of the crypto library from ST, but its not working the way it should.If I try the AES-CBC192 examples on a STM32F107 (STM3210C eval board),I can verify that the encrypted cipher text is co...

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brj2 by Associate II
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STM32L0 SPI CRC Error

Posted on April 25, 2015 at 01:18Hi,  I modify the spi sample code but enable CRC function, however I always get CRCERR. I dont know the reason.  Here is the initialization of SPI: SPI2->CR1 |= SPI_BAUDRATEPRESCALER_256; SPI2->CR1 &= ~SPI_CR1_CPOL;...

tianchen by Associate II
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Wrong CRC on STM32F3 at byte-level

Posted on April 08, 2015 at 13:09I'm trying to use the CRC peripheral on STM32F3 to calculate the CRC at byte-level but I can not get the same result as indicated in application note AN4187. The following snippet of code should return a CRC equal to...